CN113565878A - Wireless power supply type intelligent bearing with state monitoring function - Google Patents
Wireless power supply type intelligent bearing with state monitoring function Download PDFInfo
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- CN113565878A CN113565878A CN202110852668.9A CN202110852668A CN113565878A CN 113565878 A CN113565878 A CN 113565878A CN 202110852668 A CN202110852668 A CN 202110852668A CN 113565878 A CN113565878 A CN 113565878A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 71
- 238000000034 method Methods 0.000 claims abstract description 8
- 230000008569 process Effects 0.000 claims abstract description 5
- 230000008878 coupling Effects 0.000 abstract description 5
- 238000010168 coupling process Methods 0.000 abstract description 5
- 238000005859 coupling reaction Methods 0.000 abstract description 5
- 230000007547 defect Effects 0.000 abstract description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 4
- 230000006698 induction Effects 0.000 abstract description 4
- 229910052744 lithium Inorganic materials 0.000 abstract description 4
- 230000003750 conditioning effect Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 230000006641 stabilisation Effects 0.000 description 3
- 238000011105 stabilization Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/58—Raceways; Race rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/30—Parts of ball or roller bearings
- F16C33/46—Cages for rollers or needles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
- G01M13/045—Acoustic or vibration analysis
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Acoustics & Sound (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The invention discloses a wireless power supply type intelligent bearing with a state monitoring function, which comprises an outer ring, an inner ring, a retainer and a roller, wherein the outer ring is arranged on the inner ring; the bearing is characterized by also comprising a monitoring module for monitoring the state of the bearing, an annular circuit module circumferentially arranged between the outer ring and the inner ring and a power supply module for wirelessly supplying power to the annular circuit module; the monitoring module collects the state parameters of the bearing and sends the state parameters to the annular circuit module; the annular circuit module processes the received state parameters to generate processed information and uploads the processed information; wherein the state parameters comprise the temperature of the bearing, the vibration parameters of the bearing, the actual speed of the retainer and the rotating speed of the inner ring. The invention can realize real-time monitoring of the bearing state, adopts magnetic induction coupling type wireless power supply, overcomes the defects of the traditional lithium battery and wired power supply mode, and reduces the assembly and disassembly times of the bearing.
Description
Technical Field
The invention relates to the field of bearings, in particular to a wireless power supply type intelligent bearing with a state monitoring function.
Background
With the increasing development of modern industry, the health monitoring and maintenance of bearings becomes more and more important. In some large-scale mechanical equipment, the bearing is high in cost, once the bearing is damaged, equipment shutdown is caused, normal production of a workshop is affected, and then huge economic loss is brought. Therefore, it is very important to research an intelligent bearing with a state monitoring function.
And the realization is to the intelligent monitoring of bearing state, and corresponding sensor and integrated circuit are indispensable, and this has just led to the power supply problem. The power supply through the cable can not satisfy the requirement of bearing rotation, and the traditional battery is bulky, the life-span is short, to large-scale mechanical equipment, want to realize monitoring the bearing state for a long time, just need frequently change the battery. However, since the time required for assembling and disassembling the bearing is generally long and a large amount of manpower and material resources are consumed, such a power supply method is not suitable.
Disclosure of Invention
In view of the above, an object of the present invention is to overcome the defects in the prior art, and provide a wireless power supply type intelligent bearing with a state monitoring function, which can realize real-time monitoring of the state of the bearing, and adopt a magnetic induction coupling type wireless power supply, thereby overcoming the defects of the traditional lithium battery and wired power supply, and reducing the assembly and disassembly times of the bearing.
The invention discloses a wireless power supply type intelligent bearing with a state monitoring function, which comprises an outer ring, an inner ring, a retainer and a roller; the method is characterized in that: the bearing is characterized by also comprising a monitoring module for monitoring the state of the bearing, an annular circuit module circumferentially arranged between the outer ring and the inner ring and a power supply module for wirelessly supplying power to the annular circuit module;
the monitoring module collects the state parameters of the bearing and sends the state parameters to the annular circuit module; the annular circuit module processes the received state parameters to generate processed information and uploads the processed information; wherein the state parameters comprise the temperature of the bearing, the vibration parameters of the bearing, the actual speed of the retainer and the rotating speed of the inner ring.
Further, the power supply module comprises a primary side power supply annular groove and a secondary side power supply annular groove; the primary side power supply annular groove and the secondary side power supply annular groove are oppositely arranged on the bearing; a primary side power supply coil is arranged in the primary side power supply annular groove and is connected with an alternating current power supply; and a secondary side power supply coil is arranged in the secondary side power supply annular groove and is connected with the annular circuit module.
Furthermore, the primary side power supply coil and the secondary side power supply coil are circularly wound and are arranged along the radial direction of the bearing.
Further, the monitoring module comprises a temperature monitoring unit, a vibration monitoring unit and a speed monitoring unit;
the temperature monitoring unit is used for acquiring the temperature of the bearing; the vibration monitoring unit is used for acquiring vibration parameters of the bearing; the speed monitoring unit is used for acquiring the actual speed of the retainer and the rotating speed of the inner ring.
Further, the speed monitoring unit comprises a first outer ring magnet arranged on the outer ring, a first rotating speed sensor arranged on the first outer ring magnet, an inner ring magnet arranged on the inner ring and a plurality of holder magnets uniformly arranged on the holder in the circumferential direction.
Further, the speed monitoring unit further comprises a second outer ring magnet which is arranged on the outer ring and is symmetrical to the first outer ring magnet by taking the circle center of the outer ring as a symmetrical point, and a second rotating speed sensor arranged on the second outer ring magnet.
Further, the magnetic performance of the first outer ring magnet, the second outer ring magnet and the inner ring magnet is larger than that of the holder magnet.
Further, the first rotating speed sensor and the second rotating speed sensor are both Hall sensors.
Further, the temperature monitoring unit comprises a temperature sensor; the temperature sensor is arranged on the inner ring or the outer ring of the bearing.
Further, the vibration monitoring unit includes a vibration sensor.
The invention has the beneficial effects that: the invention discloses a wireless power supply type intelligent bearing with a state monitoring function, which monitors the temperature of an inner ring and an outer ring of the bearing, the vibration of the bearing, the rotating speed of the bearing and the sliding speed of a roller by arranging a plurality of sensors, and analyzes and processes the state parameter information of the bearing, thereby realizing the real-time monitoring of the state of the bearing; through set up two power supply ring channels on the bearing relatively to use the power supply coil in the power supply ring channel to realize magnetic induction coupling formula wireless power supply, overcome the defect of traditional lithium cell and wired power supply mode, reduced the number of times of installing and removing of bearing.
Drawings
The invention is further described below with reference to the following figures and examples:
FIG. 1 is a schematic view of the annular circuit board of the present invention installed in a seal ring;
FIG. 2 is a side view of the seal ring of the present invention;
FIG. 3 is a schematic view of the power supply ring groove configuration of the present invention;
FIG. 4 is an enlarged partial cross-sectional view of the power supply coil of the present invention in a power supply annular groove;
FIG. 5 is a schematic cross-sectional view of the integral installation of the power supply annular groove and annular circuit board of the present invention in a conical bearing;
FIG. 6 is a schematic view of the mounting of the magnet and the tachometer sensor of the present invention in a bearing;
wherein, 1-a sealing ring; 2-a ring-shaped circuit board; 3-upper cover of ring groove; 4-ring groove bottom plate; 6-primary side power supply coil; 7-primary side power supply ring groove; 8-secondary side power supply ring groove; 9-a bearing cap; 11-an outer ring; 12-a roller; 13-inner ring; 141-a first outer ring magnet; 151-first rotational speed sensor; 142-a second outer ring magnet; 152-a second rotational speed sensor; 16-a cage magnet; 17-inner ring magnet; 18-a cage.
Detailed Description
The invention is further described with reference to the accompanying drawings, in which:
the invention relates to a wireless power supply type intelligent bearing with a state monitoring function, which comprises an outer ring 11, an inner ring 13, a retainer 18 and rollers 12; the bearing device also comprises a monitoring module for monitoring the state of the bearing, an annular circuit module circumferentially arranged between the outer ring 11 and the inner ring 13 and a power supply module for wirelessly supplying power to the annular circuit module;
the monitoring module collects the state parameters of the bearing and sends the state parameters to the annular circuit module; the annular circuit module processes the received state parameters to generate processed information and uploads the processed information; thereby realizing the on-line monitoring of the bearing state; wherein the state parameters comprise the temperature of the bearing, the vibration parameters of the bearing, the actual speed of the cage 18 and the rotational speed of the inner ring 13.
The annular circuit module is an annular circuit board 2, and the annular circuit board 2 comprises a sensor conditioning module, a power supply voltage stabilization management module, a central processing module and a wireless transceiving module. The sensor conditioning module comprises a temperature, vibration and rotating speed conditioning circuit; the sensor conditioning module is used for filtering, amplifying and the like the acquired signals; the power supply voltage stabilization management module comprises a rectification electronic element, a filtering electronic element and a voltage stabilization electronic element; the central processing module comprises a singlechip and a peripheral circuit; the wireless transceiver module is an integrated chip and controls data transceiving by utilizing a single chip microcomputer. The annular circuit board 2 is fixedly arranged in the sealing ring 1, so that the annular circuit board 2 does not influence the normal work of the bearing; the seal ring 1 is arranged between the outer ring 11 and the inner ring 13 and used for sealing the retainer 18 and the rollers 12, and the seal ring 1 is integrally formed.
In this embodiment, the power supply module includes a primary side power supply annular groove 7 and a secondary side power supply annular groove 8; the primary side power supply annular groove 7 and the secondary side power supply annular groove 8 are oppositely arranged on the bearing; a primary side power supply coil 6 is arranged in the primary side power supply annular groove 7, and the primary side power supply coil 6 is connected with an alternating current power supply; and a secondary power supply coil is arranged in the secondary power supply annular groove 8 and is connected with the annular circuit module. The primary side power supply annular groove 7 is fixedly arranged on the bearing cover 9, and the secondary side power supply annular groove 8 is fixedly arranged on the outer surface of the bulge of the sealing ring 1; energy transmission is realized in an inductive coupling mode through the relative arrangement of the primary side power supply annular groove 7 and the secondary side power supply annular groove 8; the secondary side power supply annular groove 8 comprises an annular groove upper cover 3 and an annular groove bottom plate 4; the structure of the primary side power supply annular groove 7 is the same as that of the secondary side power supply annular groove 8, namely, the primary side power supply annular groove 7 and the secondary side power supply annular groove 8 are the same in appearance and size;
in this embodiment, the primary side power supply coil 6 and the secondary side power supply coil are both circularly wound and are arranged along the radial direction of the bearing. Through the structure, alternating magnetic field is induced by alternating current in the primary side power supply coil 6, the alternating magnetic field penetrates through the secondary side power supply coil, current is induced in the secondary side power supply coil, and the current supplies power for the annular circuit module. The wireless power supply is carried out by adopting a magnetic induction coupling mode, so that the defects of the traditional lithium battery and a wired power supply mode are overcome, and the assembly and disassembly times of the bearing are reduced.
In this embodiment, the monitoring module includes a temperature monitoring unit, a vibration monitoring unit, and a speed monitoring unit;
the temperature monitoring unit is used for acquiring the temperature of the bearing; the vibration monitoring unit is used for acquiring vibration parameters of the bearing; the speed monitoring unit is used for acquiring the actual speed of the cage 18 and the rotating speed of the inner ring 13.
In this embodiment, the speed monitoring unit includes a first outer ring magnet 141 disposed on the outer ring 11, a first rotational speed sensor 151 disposed on the first outer ring magnet 141, an inner ring magnet 17 disposed on the inner ring 13, and a plurality of cage magnets 16 uniformly disposed on the cage 18 in the circumferential direction. In this case, a cage magnet 16 is inserted between every two rollers 12 on the cage 18, so that a magnet array is formed.
In this embodiment, the speed monitoring unit further includes a second outer ring magnet 142 disposed on the outer ring 11 and a second rotation speed sensor 152 disposed on the second outer ring magnet 142, wherein the center of the outer ring 11 is a symmetric point and the first outer ring magnet 141 is symmetric. That is, the first outer ring magnet 141 and the second outer ring magnet 142 are distributed at 180 °; through the above structure, the mutual correction between the first rotation speed sensor 151 and the second rotation speed sensor 152 is performed, and the accuracy of the measured rotation speed or speed is ensured.
In the present embodiment, the magnetic properties of the first outer ring magnet 141, the second outer ring magnet 142, and the inner ring magnet 17 are all greater than the magnetic properties of the holder magnet 16. The first outer ring magnet 141, the second outer ring magnet 142 and the inner ring magnet 17 are strong magnets, and the holder magnet 16 is a weak magnet; the strong magnet is used for generating a pulse signal with a large amplitude, the weak magnet is used for generating a pulse signal with a small amplitude, the bearing rotates, the output signal is the superposition of the pulse signal with a large amplitude and the pulse signal with a small amplitude, and through the mutual matching of the strong magnet and the weak magnet, the rotation frequency of the inner ring of the bearing represented by the large pulse signal and the actual rotation frequency of the retainer represented by the small pulse signal can be enabled not to be disordered, the two rotation frequencies can be well distinguished, and the calculation of the rotation speed is facilitated.
In this embodiment, the first rotation speed sensor 151 and the second rotation speed sensor 152 are both hall sensors.
In this embodiment, the temperature monitoring unit includes a temperature sensor; the temperature sensor is arranged on the inner ring 13 or the outer ring 11 of the bearing. And measuring to obtain the temperature change condition of the bearing under the operation condition.
In this embodiment, the vibration monitoring unit includes a vibration sensor. Wherein the vibration sensor is integrated on the annular circuit board 2 and indirectly measures the vibration condition of the bearing by measuring the vibration of the seal ring 1.
The data flow principle of the bearing state parameters in the invention is as follows: the bearing state data are collected by the temperature sensor, the vibration sensor and the rotating speed sensor, the collected bearing state data are transmitted to the central processing module in the annular circuit board 2, the central processing module stores the state data and then controls the wireless receiving and transmitting module to send the data to the upper computer, and the upper computer pushes the received data to the PC end to be displayed.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (10)
1. A wireless power supply type intelligent bearing with a state monitoring function comprises an outer ring, an inner ring, a retainer and a roller; the method is characterized in that: the bearing is characterized by also comprising a monitoring module for monitoring the state of the bearing, an annular circuit module circumferentially arranged between the outer ring and the inner ring and a power supply module for wirelessly supplying power to the annular circuit module;
the monitoring module collects the state parameters of the bearing and sends the state parameters to the annular circuit module; the annular circuit module processes the received state parameters to generate processed information and uploads the processed information; wherein the state parameters comprise the temperature of the bearing, the vibration parameters of the bearing, the actual speed of the retainer and the rotating speed of the inner ring.
2. The wirelessly powered smart bearing with condition monitoring capability of claim 1, wherein: the power supply module comprises a primary side power supply annular groove and a secondary side power supply annular groove; the primary side power supply annular groove and the secondary side power supply annular groove are oppositely arranged on the bearing; a primary side power supply coil is arranged in the primary side power supply annular groove and is connected with an alternating current power supply; and a secondary side power supply coil is arranged in the secondary side power supply annular groove and is connected with the annular circuit module.
3. The wirelessly powered smart bearing with condition monitoring capability of claim 2, wherein: the primary side power supply coil and the secondary side power supply coil are circularly wound and are arranged along the radial direction of the bearing.
4. The wirelessly powered smart bearing with condition monitoring capability of claim 1, wherein: the monitoring module comprises a temperature monitoring unit, a vibration monitoring unit and a speed monitoring unit;
the temperature monitoring unit is used for acquiring the temperature of the bearing; the vibration monitoring unit is used for acquiring vibration parameters of the bearing; the speed monitoring unit is used for acquiring the actual speed of the retainer and the rotating speed of the inner ring.
5. The wirelessly powered smart bearing with condition monitoring capability of claim 4, wherein: the speed monitoring unit comprises a first outer ring magnet arranged on the outer ring, a first rotating speed sensor arranged on the first outer ring magnet, an inner ring magnet arranged on the inner ring and a plurality of holder magnets uniformly arranged on the holder in the circumferential direction.
6. The wirelessly powered smart bearing with condition monitoring capability of claim 5, wherein: the speed monitoring unit further comprises a second outer ring magnet and a second rotating speed sensor, the second outer ring magnet is arranged on the outer ring, and the second outer ring magnet is symmetrical to the first outer ring magnet by taking the circle center of the outer ring as a symmetrical point.
7. The wirelessly powered smart bearing with condition monitoring capability of claim 6, wherein: the magnetic performance of the first outer ring magnet, the second outer ring magnet and the inner ring magnet is larger than that of the magnet of the retainer.
8. The wirelessly powered smart bearing with condition monitoring capability of claim 6, wherein: the first rotating speed sensor and the second rotating speed sensor are both Hall sensors.
9. The wirelessly powered smart bearing with condition monitoring capability of claim 4, wherein: the temperature monitoring unit comprises a temperature sensor; the temperature sensor is arranged on the inner ring or the outer ring of the bearing.
10. The wirelessly powered smart bearing with condition monitoring capability of claim 4, wherein: the vibration monitoring unit includes a vibration sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110852668.9A CN113565878A (en) | 2021-07-27 | 2021-07-27 | Wireless power supply type intelligent bearing with state monitoring function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110852668.9A CN113565878A (en) | 2021-07-27 | 2021-07-27 | Wireless power supply type intelligent bearing with state monitoring function |
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| CN113565878A true CN113565878A (en) | 2021-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110852668.9A Pending CN113565878A (en) | 2021-07-27 | 2021-07-27 | Wireless power supply type intelligent bearing with state monitoring function |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114813114A (en) * | 2022-05-09 | 2022-07-29 | 重庆大学 | Transmission precision detection device and method for rotating speed of harmonic reducer |
| CN114810841A (en) * | 2022-04-02 | 2022-07-29 | 陕西理工大学 | Intelligent water lubricating bearing |
| CN115199650A (en) * | 2022-07-11 | 2022-10-18 | 中铁工程装备集团有限公司 | Bearing with speed sensing function and speed monitoring method thereof |
| CN117091063A (en) * | 2023-10-18 | 2023-11-21 | 沈阳仪表科学研究院有限公司 | Bearing automatic lubrication regulation and control method, system and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114810841A (en) * | 2022-04-02 | 2022-07-29 | 陕西理工大学 | Intelligent water lubricating bearing |
| CN114810841B (en) * | 2022-04-02 | 2023-06-27 | 陕西理工大学 | Intelligent water lubrication bearing |
| CN114813114A (en) * | 2022-05-09 | 2022-07-29 | 重庆大学 | Transmission precision detection device and method for rotating speed of harmonic reducer |
| CN114813114B (en) * | 2022-05-09 | 2023-01-24 | 重庆大学 | Transmission precision detection device and method for rotating speed of harmonic reducer |
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| CN117091063A (en) * | 2023-10-18 | 2023-11-21 | 沈阳仪表科学研究院有限公司 | Bearing automatic lubrication regulation and control method, system and device |
| CN117091063B (en) * | 2023-10-18 | 2024-01-09 | 沈阳仪表科学研究院有限公司 | Bearing automatic lubrication regulation and control method, system and device |
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Application publication date: 20211029 |
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| RJ01 | Rejection of invention patent application after publication |